01 / Main
I build software, then keep looking after it.
Mostly native apps and developer tools. I handle the product, interface, implementation, testing, release, and the less glamorous work after launch.
I care about setup, shared state, failure paths, data ownership, and the places where software becomes harder than it needs to be.
02 / My work
Current projects
Four active products, including one pending release. Open an entry for the useful details, or continue to its full project page.
01 Kweezzie Local multiplayer trivia iPhone + iPad · 2026
Nearby devices become one live trivia room for up to six players. No accounts and no central game server required.
- role
- Product design & engineering
- constraint
- Room state must stay coherent when devices join late, reconnect, or disagree about timing.
- built with
- Swift / iOS / Multipeer / SharePlay
- Nearby multiplayer over Wi-Fi and Bluetooth with simple room-code joining
- Fast questions with time bonuses, answer streaks, and live leaderboards
- Three tactical power-ups: 50/50, extra time, and double points
02 ICS Toolkit Calendar file utility iPhone + iPad · 2026
Create, import, inspect, and share standards-based calendar files without handing event data to a service.
- role
- Product design & engineering
- constraint
- Recurrence, time zones, invitations, attachments, and destination limits must remain visible before export.
- built with
- Swift / iOS / iCalendar / EventKit
- Create timed or all-day events with explicit time zones
- Configure daily, weekly, monthly, or yearly recurrence and exceptions
- Add multiple reminders, categories, status, visibility, and availability
03 Visual REST Client Graphical HTTP client Visual Studio Code · 2026
Edit and run version-controlled .rest and .http files without hiding how requests, variables, authentication, and responses are resolved.
- role
- Product design & engineering
- constraint
- The portable text file stays the source of truth while secrets remain isolated to the workspace.
- built with
- TypeScript / VS Code / HTTP / OAuth 2.0
- Visual editing for .rest and .http requests while preserving the source format
- Searchable request sidebar with collections, filters, reordering, and duplication
- Built-in sender with cancellation, redirects, compression, and response limits
04 Shortcut Canvas Shortcuts image toolkit iPhone + iPad · 2026
Build reusable images inside Apple Shortcuts, from customizable templates or individual drawing actions, then render PNG or PDF files.
- role
- Product design & engineering
- constraint
- Canvas state must pass reliably between actions while previews and exports share one deterministic rendering path.
- built with
- Swift / App Intents / Core Graphics / Shortcuts
- Create persistent canvases and pass them between Shortcuts actions
- Start with 14 customizable templates for cards, tickets, certificates, and more
- Compose original layouts from styled rectangles and text
03 / Contact
Have a concrete software problem?
Tell me what exists, where it becomes difficult, and what should be different. A short email is enough.
contact@prawel.pl ↗04 / Privacy
No tracking here.
This site uses no accounts, advertising, analytics, or behavioral tracking. Product-specific policies are equally direct.
05 / Support
Something not working?
The shortest reproducible path is usually the most useful report.
- 01 Update
Install the latest version and restart.
- 02 Reproduce
Find the shortest sequence that triggers the issue.
- 03 Record
Include the product, version, device or OS, and exact error text.
- 04 Redact
Remove tokens, private URLs, names, and calendar content.